The Benitez Sisters got their start in their native Cuba. Fashioning themselves after the more popular singing groups around Havana at the time. However, as the times dictated Hermanas Benitez found themselves settling in Mexico in the early 1960's where their recording career took off.
Tonight it's a track from 1960 and an early stab at a Girl Group rock n' roll sound. Pepito has none of the trappings of the Havana singing groups of the time. Rather they tried to emulate a modified Doo-Wop approach. The result is . . .well . . interesting.
I would imagine you probably haven't heard this track before - I don't think it's been reissued on any of their compilations, and if you can get past the Accordion that plays a prominent position in the song it's rather catchy.